Question

the atom of an element x has 15 electrons and 16 neutrons in it :
1] what the atomic number of x?
2]what the mass number of x?
3]what is the number of valence electrons in x?

Answer 1

Answer:

1. 31 2. 32. 3. 6

Explanation:

this is a sulphur so calulate atomic no. 31

mass no. of S 32

velence electron 6